CenTROL® Conventional Gravity Filter

CenTROL Conventional Gravity Filters in a Cluster Arrangement

CenTROL® conventional gravity filters may be applied wherever a cost-effective, space-saving conventional gravity filter is desired. The heart of the General Filter CenTROL lies in the prefabricated center column that eliminates onsite assembly of a piping gallery. CenTROL furnishes its own backwash water supply from in-service cells. In most cases, backwash supply pumps are eliminated.

Each CenTROL filter has four granular media filter cells positioned around a central distributor column. Circular weirs evenly divide the water to each operating cell for filtration. The water then flows down through the filter media and through the underdrain and out into an effluent chamber and over the effluent weirs.

During backwash, the effluent weirs provide backwash head to clean the filters with water from in-service cells. Backwash waste is discharged from the bottom of the distribution column.

Prefabricated components include the distributor column, washtroughs, and underdrain forms. These components simplify construction and minimize cost.

CenTROL filters are used in hundreds of plants. They are preferred for their compact arrangement and simple operation.

The CenTROL offers you:

  • Low system headloss
  • Cluster arrangement for compact footprint
  • MULTICELL® in-service backwash supply to eliminate or minimize backwash pumping
  • Pre-engineered system to reduce design costs

NEW Low Profile CenTROL System with MULTIWASH® Process

A newly designed low profile CenTROL system reduces operating and installation costs providing you an efficient and low cost alternative to conventional gravity filter design.

You will benefit from the proven track record with over 300 units installed.

Benefits and Features

  • Prefabricated distributor column
  • Common cell walls
  • Common effluent chamber
  • Monolithic or block style underdrain options
  • MULTIWASH air-water backwash
  • Reduced overall installation cost
  • Lowest operating headloss
  • Simplified backwash rate control with no need for pumps
  • Guaranteed clean media
  • Flexible media selection

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